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Updated: Jan 7, 2026

Using Microwave and Macroscopic Samples of Dielectric Solids to Study the Photonic Properties of Disordered Photonic Bandgap Materials
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Published on: September 26, 2014

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卡频宽带高收益循环偏振天线阵列,具有高交叉偏振区分

Changlin Li1, Yongzhong Zhu2, Yang Zhou1

  • 1Department of Information and Communications, Engineering University of the People's Armed Police, Xi'an, 710086, China.

Scientific reports
|December 29, 2025
PubMed
概括

这项研究引入了一种Ka频段循环偏振天线阵列,该阵列使用新型解表面显著减少干扰. 这一进步提高了5G毫米波通信的性能.

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Mesh Analysis for AC Circuits01:12

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In the domain of radio communication, the significance of impedance matching must be considered. It is crucial to ensure the efficient transmission of signals between radio transmitters and receivers. Achieving this balance involves using impedance-matching circuits, with one fundamental configuration comprising a resistor, capacitor, and inductor.
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Bandpass Sampling

In signal processing, bandpass sampling is an effective technique for sampling signals that have most of their energy concentrated within a narrow frequency band. This type of signal is known as a bandpass signal. The key principle of bandpass sampling involves sampling the signal at a rate that is greater than twice the signal's bandwidth to prevent aliasing.
A bandpass signal has a spectrum with a lower frequency limit, denoted as ω1, and an upper frequency limit, denoted as ω2....
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Group Polarization

Group polarization is the strengthening of an original group attitude following the discussion of views within a group (Teger & Pruitt, 1967). That is, if a group initially favors a viewpoint, after discussion the group consensus is likely a stronger endorsement of the viewpoint. Conversely, if the group was initially opposed to a viewpoint, group discussion would likely lead to stronger opposition.
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